Dec 052017
Checks the speed of your floppy drive.
File FDRPM.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
Checks the speed of your floppy drive.
File Name File Size Zip Size Zip Type
RPM.COM 2286 1300 deflated
RPM.DOC 5590 2130 deflated

Download File FDRPM.ZIP Here

Contents of the RPM.DOC file

Sydex Diskette RPM Test

March 18, 1990

Copyright 1990, Sydex
153 North Murphy Ave.
Sunnyvale, CA 94086
(408) 739-4866 (voice)
(408) 738-2860 (FAX)

This test determines the rotational speed of any diskette drive
connected to the primary, or only, diskette adapter. It is non-
destructive in operation and requires only a formatted diskette
to operate.

For most DOS applications, diskette rotation speed is not criti-
cal, as there is usually plenty of tolerance in the diskette for-
mat to take up small variations in speed. However, when format-
ting diskettes for use in special applications where the data is-
more densely packed, a too-fast drive will cause some of the for-
matting information to be lost.

Lately, we've encountered a few instances of these too-fast
drives, which seem to be more common among the Korean and
Taiwanese brands. If you possess the technical knowledge to ad-
just the speed of your drive, then this may be used to verify
that you've done your work correctly. If not, this test will
serve as a tool for selecting a drive that meets your needs.

Well-adjusted 5.25" 360K and all 3.5" 720K and 1.44M diskette
drives spin at 300 revolutions per minute (RPM). A high-density
1.2Mb 5.25" drive and all 8" drives spin at 360 RPM. It's much
preferable to have a drive that is spinning slightly slow (e.g.,
296 RPM instead of 300) than to have one which is slightly fast
(e.g. 305 RPM).

To verify the speed of a diskette drive, simply enter this com-
mand as:

RPM d:

Where d: is the letter of the drive to be tested. A running dis-
play of the current drive speed, updated approximately twice per
second will be shown. To exit, simply press ESCape or remove the

This program is released for non-commercial general use by Sydex.
No fee may be charged for it, although a distribution fee, not to
exceed $5.00 may be requested to cover the costs of duplication
and distribution.


Sydex has an expanding line of shareware storage-managment
software. If you're not familiar with our offerings, please take
the time to investigate them!

AnaDisk -- The compleat diskette utility. Nothing like it
anywhere else; scan, edit, repair and copy just about any
kind of diskette. $25.00 ($150.00 site) registration fee.

Con>Format -- Concurrent "background" diskette formatter.
Features "pop-up" operation and "hot key" activation.
You've got to see it to believe. Supports all current DOS
formats. $15.00 ($50.00 site) registration fee.

22DISK -- Transfer files, format, examine and erase files on
"foreign" CP/M diskettes on your PC. Includes tips on sup-
porting 8" and 5.25" single-density diskettes. Contains
definitions for over 200 different formats. $25.00 ($100.00
site) registration fee.

22NICE -- A CP/M 2.2 emulation package. Supports the NEC
V-series chips or performs emulation by software for both
the 8080 and Z80 processors. Includes terminal emulation
and diskette handling for common CP/M systems. Includes
22DISK. $40.00 ($150.00 site) registration fee.

TeleDisk -- Turn any diskette into a compressed data file
and vice-versa. Allows you to send and receive entire dis-
kettes via modem. Even works with some "copy-protected" dis-
kettes. $20.00 ($65.00 site) registration fee.

COPYQM -- Mass diskette duplicator. Format, copy and verify
multiple diskettes from a single master. Implements "no
keyboard" interaction mode and drive "round robin" servic-
ing. Supports all standard DOS formats. $15.00 ($50.00
site) registration fee.

FORMATQM -- Mass diskette formatter - format a box of dis-
kettes at a single sitting. Implements "no keyboard" inter-
action mode and drive "round robin" servicing. Supports all
standard DOS formats. $10.00 ($40.00 site) registration

Sydex also offers a line of DOS device drivers to enable a PC to
read, write and format MS-DOS diskettes from the DEC Rainbow, HP-
150, Eagle 1600 and Sharp 5641.

Information on any of these products can be obtained from Sydex
by calling (408) 739-4866 (voice) or by leaving a request on our
Bulletin Board System (408) 738-2860 (1200-9600 bps, N81).


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